main_surfaceflinger.cpp revision 392db573b35d6fe09c4da094ed81c54ed528a511 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <sys/resource.h>
18
19#include <cutils/sched_policy.h>
20#include <binder/IServiceManager.h>
21#include <binder/IPCThreadState.h>
22#include <binder/ProcessState.h>
23#include <binder/IServiceManager.h>
24#include "SurfaceFlinger.h"
25
26using namespace android;
27
28int main(int, char**) {
29    // When SF is launched in its own process, limit the number of
30    // binder threads to 4.
31    ProcessState::self()->setThreadPoolMaxThreadCount(4);
32
33    // start the thread pool
34    sp<ProcessState> ps(ProcessState::self());
35    ps->startThreadPool();
36
37    // instantiate surfaceflinger
38    sp<SurfaceFlinger> flinger = new SurfaceFlinger();
39
40    setpriority(PRIO_PROCESS, 0, PRIORITY_URGENT_DISPLAY);
41
42    set_sched_policy(0, SP_FOREGROUND);
43
44#ifdef ENABLE_CPUSETS
45    // Put most SurfaceFlinger threads in the system-background cpuset
46    // Keeps us from unnecessarily using big cores
47    // Do this after the binder thread pool init
48    set_cpuset_policy(0, SP_SYSTEM);
49#endif
50
51    // initialize before clients can connect
52    flinger->init();
53
54    // publish surface flinger
55    sp<IServiceManager> sm(defaultServiceManager());
56    sm->addService(String16(SurfaceFlinger::getServiceName()), flinger, false);
57
58    // run in this thread
59    flinger->run();
60
61    return 0;
62}
63